Springs and Natural Drainage Points in Sweden

Springs are natural drainage points for groundwater in Quaternary deposits and
bedrock. They permit simple sampling of the water and assessment of quality.
The yield of large groundwater reservoirs is usually characterised by slow
changes in flow as well as in water quality. The strongest flowing springs are
often found close to the large glaciofluvial deposits. In connection with the
hydrogeological mapping of Counties in Sweden, a general inventory of perennial
springs is carried out. Data about the springs are obtained from studies of
geological and economic maps, from reports and through information from the
public. From the inventory, the yield is estimated, and temperatures and pH of
the waters are measured. For certain springs a water sample is taken for a more
complete chemical analysis.